/**
 * @1900-2100区间内的公历、农历互转
 * @charset UTF-8
 * @Author  jiangjiazhi
 * @公历转农历：calendar.solar2lunar(1987,11,01); //[you can ignore params of prefix 0]
 * @农历转公历：calendar.lunar2solar(1987,09,10); //[you can ignore params of prefix 0]
 */


/**
 * 农历1900-2100的润大小信息表
 * @Array Of Property
 * @return Hex
 */

var lunarInfo = [0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2, // 1900-1909

    0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977, // 1910-1919

    0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970, // 1920-1929

    0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0, 0x1c8d7, 0x0c950, // 1930-1939

    0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, // 1940-1949

    0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5b0, 0x14573, 0x052b0, 0x0a9a8, 0x0e950, 0x06aa0, // 1950-1959

    0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0, // 1960-1969

    0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b6a0, 0x195a6, // 1970-1979

    0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570, // 1980-1989

    0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x05ac0, 0x0ab60, 0x096d5, 0x092e0, // 1990-1999

    0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, 0x092d0, 0x0cab5, // 2000-2009

    0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930, // 2010-2019

    0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65, 0x0d530, // 2020-2029

    0x05aa0, 0x076a3, 0x096d0, 0x04afb, 0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, // 2030-2039

    0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0, // 2040-2049

    0x14b63, 0x09370, 0x049f8, 0x04970, 0x064b0, 0x168a6, 0x0ea50, 0x06b20, 0x1a6c4, 0x0aae0, // 2050-2059

    0x0a2e0, 0x0d2e3, 0x0c960, 0x0d557, 0x0d4a0, 0x0da50, 0x05d55, 0x056a0, 0x0a6d0, 0x055d4, // 2060-2069

    0x052d0, 0x0a9b8, 0x0a950, 0x0b4a0, 0x0b6a6, 0x0ad50, 0x055a0, 0x0aba4, 0x0a5b0, 0x052b0, // 2070-2079

    0x0b273, 0x06930, 0x07337, 0x06aa0, 0x0ad50, 0x14b55, 0x04b60, 0x0a570, 0x054e4, 0x0d160, // 2080-2089

    0x0e968, 0x0d520, 0x0daa0, 0x16aa6, 0x056d0, 0x04ae0, 0x0a9d4, 0x0a2d0, 0x0d150, 0x0f252, // 2090-2099

    0x0d520] // 2100


var solarMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]


/**
 * 天干地支之天干速查表
 * @Array Of Property trans['甲','乙','丙','丁','戊','己','庚','辛','壬','癸']
 * @return Cn string
 */

var Gan = ['\u7532', '\u4e59', '\u4e19', '\u4e01', '\u620a', '\u5df1', '\u5e9a', '\u8f9b', '\u58ec', '\u7678']


/**
 * 天干地支之地支速查表
 * @Array Of Property
 * @trans['子','丑','寅','卯','辰','巳','午','未','申','酉','戌','亥']
 * @return Cn string
 */

var Zhi = ['\u5b50', '\u4e11', '\u5bc5', '\u536f', '\u8fb0', '\u5df3', '\u5348', '\u672a', '\u7533', '\u9149', '\u620c', '\u4ea5']


/**
 * 天干地支之地支速查表<=>生肖
 * @Array Of Property
 * @trans['鼠','牛','虎','兔','龙','蛇','马','羊','猴','鸡','狗','猪']
 * @return Cn string
 */

var Animals = ['\u9f20', '\u725b', '\u864e', '\u5154', '\u9f99', '\u86c7', '\u9a6c', '\u7f8a', '\u7334', '\u9e21', '\u72d7', '\u732a']


/**
 * 24节气速查表
 * @Array Of Property
 * @trans['小寒','大寒','立春','雨水','惊蛰','春分','清明','谷雨','立夏','小满','芒种','夏至','小暑','大暑','立秋','处暑','白露','秋分','寒露','霜降','立冬','小雪','大雪','冬至']
 * @return Cn string
 */

var solarTerm = ['\u5c0f\u5bd2', '\u5927\u5bd2', '\u7acb\u6625', '\u96e8\u6c34', '\u60ca\u86f0', '\u6625\u5206', '\u6e05\u660e', '\u8c37\u96e8', '\u7acb\u590f', '\u5c0f\u6ee1', '\u8292\u79cd', '\u590f\u81f3', '\u5c0f\u6691', '\u5927\u6691', '\u7acb\u79cb', '\u5904\u6691', '\u767d\u9732', '\u79cb\u5206', '\u5bd2\u9732', '\u971c\u964d', '\u7acb\u51ac', '\u5c0f\u96ea', '\u5927\u96ea', '\u51ac\u81f3']


/**
 * 1900-2100各年的24节气日期速查表
 * @Array Of Property
 * @return 0x string For splice
 */

var sTermInfo = ['9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e', '97bcf97c3598082c95f8c965cc920f',

    '97bd0b06bdb0722c965ce1cfcc920f', 'b027097bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e',

    '97bcf97c359801ec95f8c965cc920f', '97bd0b06bdb0722c965ce1cfcc920f', 'b027097bd097c36b0b6fc9274c91aa',

    '97b6b97bd19801ec9210c965cc920e', '97bcf97c359801ec95f8c965cc920f', '97bd0b06bdb0722c965ce1cfcc920f',

    'b027097bd097c36b0b6fc9274c91aa', '9778397bd19801ec9210c965cc920e', '97b6b97bd19801ec95f8c965cc920f',

    '97bd09801d98082c95f8e1cfcc920f', '97bd097bd097c36b0b6fc9210c8dc2', '9778397bd197c36c9210c9274c91aa',

    '97b6b97bd19801ec95f8c965cc920e', '97bd09801d98082c95f8e1cfcc920f', '97bd097bd097c36b0b6fc9210c8dc2',

    '9778397bd097c36c9210c9274c91aa', '97b6b97bd19801ec95f8c965cc920e', '97bcf97c3598082c95f8e1cfcc920f',

    '97bd097bd097c36b0b6fc9210c8dc2', '9778397bd097c36c9210c9274c91aa', '97b6b97bd19801ec9210c965cc920e',

    '97bcf97c3598082c95f8c965cc920f', '97bd097bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',

    '97b6b97bd19801ec9210c965cc920e', '97bcf97c3598082c95f8c965cc920f', '97bd097bd097c35b0b6fc920fb0722',

    '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e', '97bcf97c359801ec95f8c965cc920f',

    '97bd097bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e',

    '97bcf97c359801ec95f8c965cc920f', '97bd097bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',

    '97b6b97bd19801ec9210c965cc920e', '97bcf97c359801ec95f8c965cc920f', '97bd097bd07f595b0b6fc920fb0722',

    '9778397bd097c36b0b6fc9210c8dc2', '9778397bd19801ec9210c9274c920e', '97b6b97bd19801ec95f8c965cc920f',

    '97bd07f5307f595b0b0bc920fb0722', '7f0e397bd097c36b0b6fc9210c8dc2', '9778397bd097c36c9210c9274c920e',

    '97b6b97bd19801ec95f8c965cc920f', '97bd07f5307f595b0b0bc920fb0722', '7f0e397bd097c36b0b6fc9210c8dc2',

    '9778397bd097c36c9210c9274c91aa', '97b6b97bd19801ec9210c965cc920e', '97bd07f1487f595b0b0bc920fb0722',

    '7f0e397bd097c36b0b6fc9210c8dc2', '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e',

    '97bcf7f1487f595b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',

    '97b6b97bd19801ec9210c965cc920e', '97bcf7f1487f595b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722',

    '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e', '97bcf7f1487f531b0b0bb0b6fb0722',

    '7f0e397bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa', '97b6b97bd19801ec9210c965cc920e',

    '97bcf7f1487f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',

    '97b6b97bd19801ec9210c9274c920e', '97bcf7f0e47f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722',

    '9778397bd097c36b0b6fc9210c91aa', '97b6b97bd197c36c9210c9274c920e', '97bcf7f0e47f531b0b0bb0b6fb0722',

    '7f0e397bd07f595b0b0bc920fb0722', '9778397bd097c36b0b6fc9210c8dc2', '9778397bd097c36c9210c9274c920e',

    '97b6b7f0e47f531b0723b0b6fb0722', '7f0e37f5307f595b0b0bc920fb0722', '7f0e397bd097c36b0b6fc9210c8dc2',

    '9778397bd097c36b0b70c9274c91aa', '97b6b7f0e47f531b0723b0b6fb0721', '7f0e37f1487f595b0b0bb0b6fb0722',

    '7f0e397bd097c35b0b6fc9210c8dc2', '9778397bd097c36b0b6fc9274c91aa', '97b6b7f0e47f531b0723b0b6fb0721',

    '7f0e27f1487f595b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa',

    '97b6b7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722',

    '9778397bd097c36b0b6fc9274c91aa', '97b6b7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722',

    '7f0e397bd097c35b0b6fc920fb0722', '9778397bd097c36b0b6fc9274c91aa', '97b6b7f0e47f531b0723b0b6fb0721',

    '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722', '9778397bd097c36b0b6fc9274c91aa',

    '97b6b7f0e47f531b0723b0787b0721', '7f0e27f0e47f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722',

    '9778397bd097c36b0b6fc9210c91aa', '97b6b7f0e47f149b0723b0787b0721', '7f0e27f0e47f531b0723b0b6fb0722',

    '7f0e397bd07f595b0b0bc920fb0722', '9778397bd097c36b0b6fc9210c8dc2', '977837f0e37f149b0723b0787b0721',

    '7f07e7f0e47f531b0723b0b6fb0722', '7f0e37f5307f595b0b0bc920fb0722', '7f0e397bd097c35b0b6fc9210c8dc2',

    '977837f0e37f14998082b0787b0721', '7f07e7f0e47f531b0723b0b6fb0721', '7f0e37f1487f595b0b0bb0b6fb0722',

    '7f0e397bd097c35b0b6fc9210c8dc2', '977837f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721',

    '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722', '977837f0e37f14998082b0787b06bd',

    '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd097c35b0b6fc920fb0722',

    '977837f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722',

    '7f0e397bd07f595b0b0bc920fb0722', '977837f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721',

    '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722', '977837f0e37f14998082b0787b06bd',

    '7f07e7f0e47f149b0723b0787b0721', '7f0e27f0e47f531b0b0bb0b6fb0722', '7f0e397bd07f595b0b0bc920fb0722',

    '977837f0e37f14998082b0723b06bd', '7f07e7f0e37f149b0723b0787b0721', '7f0e27f0e47f531b0723b0b6fb0722',

    '7f0e397bd07f595b0b0bc920fb0722', '977837f0e37f14898082b0723b02d5', '7ec967f0e37f14998082b0787b0721',

    '7f07e7f0e47f531b0723b0b6fb0722', '7f0e37f1487f595b0b0bb0b6fb0722', '7f0e37f0e37f14898082b0723b02d5',

    '7ec967f0e37f14998082b0787b0721', '7f07e7f0e47f531b0723b0b6fb0722', '7f0e37f1487f531b0b0bb0b6fb0722',

    '7f0e37f0e37f14898082b0723b02d5', '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721',

    '7f0e37f1487f531b0b0bb0b6fb0722', '7f0e37f0e37f14898082b072297c35', '7ec967f0e37f14998082b0787b06bd',

    '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e37f0e37f14898082b072297c35',

    '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722',

    '7f0e37f0e366aa89801eb072297c35', '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f149b0723b0787b0721',

    '7f0e27f1487f531b0b0bb0b6fb0722', '7f0e37f0e366aa89801eb072297c35', '7ec967f0e37f14998082b0723b06bd',

    '7f07e7f0e47f149b0723b0787b0721', '7f0e27f0e47f531b0723b0b6fb0722', '7f0e37f0e366aa89801eb072297c35',

    '7ec967f0e37f14998082b0723b06bd', '7f07e7f0e37f14998083b0787b0721', '7f0e27f0e47f531b0723b0b6fb0722',

    '7f0e37f0e366aa89801eb072297c35', '7ec967f0e37f14898082b0723b02d5', '7f07e7f0e37f14998082b0787b0721',

    '7f07e7f0e47f531b0723b0b6fb0722', '7f0e36665b66aa89801e9808297c35', '665f67f0e37f14898082b0723b02d5',

    '7ec967f0e37f14998082b0787b0721', '7f07e7f0e47f531b0723b0b6fb0722', '7f0e36665b66a449801e9808297c35',

    '665f67f0e37f14898082b0723b02d5', '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721',

    '7f0e36665b66a449801e9808297c35', '665f67f0e37f14898082b072297c35', '7ec967f0e37f14998082b0787b06bd',

    '7f07e7f0e47f531b0723b0b6fb0721', '7f0e26665b66a449801e9808297c35', '665f67f0e37f1489801eb072297c35',

    '7ec967f0e37f14998082b0787b06bd', '7f07e7f0e47f531b0723b0b6fb0721', '7f0e27f1487f531b0b0bb0b6fb0722']


/**
 * 数字转中文速查表
 * @Array Of Property
 * @trans ['日','一','二','三','四','五','六','七','八','九','十']
 * @return Cn string
 */

var nStr1 = ['\u65e5', '\u4e00', '\u4e8c', '\u4e09', '\u56db', '\u4e94', '\u516d', '\u4e03', '\u516b', '\u4e5d', '\u5341']


/**
 * 日期转农历称呼速查表
 * @Array Of Property
 * @trans ['初','十','廿','卅']
 * @return Cn string
 */

var nStr2 = ['\u521d', '\u5341', '\u5eff', '\u5345']


/**
 * 月份转农历称呼速查表
 * @Array Of Property
 * @trans ['正','一','二','三','四','五','六','七','八','九','十','冬','腊']
 * @return Cn string
 */

var nStr3 = ['\u6b63', '\u4e8c', '\u4e09', '\u56db', '\u4e94', '\u516d', '\u4e03', '\u516b', '\u4e5d', '\u5341', '\u51ac', '\u814a']


/**
 * 返回农历y年一整年的总天数
 * @param lunar Year
 * @return Number
 * @eg:var count = calendar.lYearDays(1987) ;//count=387
 */

function lYearDays(y) {
    var i

    var sum = 348

    for (i = 0x8000; i > 0x8; i >>= 1) {
        sum += (lunarInfo[y - 1900] & i) ? 1 : 0
    }

    return (sum + leapDays(y))

}


/**
 * 返回农历y年闰月是哪个月；若y年没有闰月 则返回0
 * @param lunar Year
 * @return Number (0-12)
 * @eg:var leapMonth = calendar.leapMonth(1987) ;//leapMonth=6
 */

function leapMonth(y) { // 闰字编码 \u95f0

    return (lunarInfo[y - 1900] & 0xf)

}


/**
 * 返回农历y年闰月的天数 若该年没有闰月则返回0
 * @param lunar Year
 * @return Number (0、29、30)
 * @eg:var leapMonthDay = calendar.leapDays(1987) ;//leapMonthDay=29
 */

function leapDays(y) {
    if (leapMonth(y)) {
        return ((lunarInfo[y - 1900] & 0x10000) ? 30 : 29)

    }

    return (0)

}


/**
 * 返回农历y年m月（非闰月）的总天数，计算m为闰月时的天数请使用leapDays方法
 * @param lunar Year
 * @return Number (-1、29、30)
 * @eg:var MonthDay = calendar.monthDays(1987,9) ;//MonthDay=29
 */

function monthDays(y, m) {
    if (m > 12 || m < 1) {
        return -1
    }// 月份参数从1至12，参数错误返回-1

    return ((lunarInfo[y - 1900] & (0x10000 >> m)) ? 30 : 29)

}


/**
 * 返回公历(!)y年m月的天数
 * @param solar Year
 * @return Number (-1、28、29、30、31)
 * @eg:var solarMonthDay = calendar.leapDays(1987) ;//solarMonthDay=30
 */

function solarDays(y, m) {
    if (m > 12 || m < 1) {
        return -1
    } // 若参数错误 返回-1

    var ms = m - 1

    if (ms === 1) { // 2月份的闰平规律测算后确认返回28或29

        return (((y % 4 === 0) && (y % 100 !== 0) || (y % 400 === 0)) ? 29 : 28)

    } else {
        return (solarMonth[ms])

    }

}


/**
 * 农历年份转换为干支纪年
 * @param  lYear 农历年的年份数
 * @return Cn string
 */

function toGanZhiYear(lYear) {
    var ganKey = (lYear - 3) % 10

    var zhiKey = (lYear - 3) % 12

    if (ganKey === 0) ganKey = 10 // 如果余数为0则为最后一个天干

    if (zhiKey === 0) zhiKey = 12 // 如果余数为0则为最后一个地支

    return Gan[ganKey - 1] + Zhi[zhiKey - 1]

}


/**
 * 公历月、日判断所属星座
 * @param  cMonth [description]
 * @param  cDay [description]
 * @return Cn string
 */

function toAstro(cMonth, cDay) {
    var s = '\u9b54\u7faf\u6c34\u74f6\u53cc\u9c7c\u767d\u7f8a\u91d1\u725b\u53cc\u5b50\u5de8\u87f9\u72ee\u5b50\u5904\u5973\u5929\u79e4\u5929\u874e\u5c04\u624b\u9b54\u7faf'

    var arr = [20, 19, 21, 21, 21, 22, 23, 23, 23, 23, 22, 22]

    return s.substr(cMonth * 2 - (cDay < arr[cMonth - 1] ? 2 : 0), 2) + '\u5ea7' // 座

}


/**
 * 传入offset偏移量返回干支
 * @param offset 相对甲子的偏移量
 * @return Cn string
 */

function toGanZhi(offset) {
    return Gan[offset % 10] + Zhi[offset % 12]

}


/**
 * 传入公历(!)y年获得该年第n个节气的公历日期
 * @param y公历年(1900-2100)；n二十四节气中的第几个节气(1~24)；从n=1(小寒)算起
 * @return day Number
 * @eg:var _24 = calendar.getTerm(1987,3) ;//_24=4;意即1987年2月4日立春
 */

function getTerm(y, n) {
    if (y < 1900 || y > 2100) {
        return -1
    }

    if (n < 1 || n > 24) {
        return -1
    }

    var _table = sTermInfo[y - 1900]

    var _info = [

        parseInt('0x' + _table.substr(0, 5)).toString(),

        parseInt('0x' + _table.substr(5, 5)).toString(),

        parseInt('0x' + _table.substr(10, 5)).toString(),

        parseInt('0x' + _table.substr(15, 5)).toString(),

        parseInt('0x' + _table.substr(20, 5)).toString(),

        parseInt('0x' + _table.substr(25, 5)).toString()

    ]

    var _calday = [

        _info[0].substr(0, 1),

        _info[0].substr(1, 2),

        _info[0].substr(3, 1),

        _info[0].substr(4, 2),


        _info[1].substr(0, 1),

        _info[1].substr(1, 2),

        _info[1].substr(3, 1),

        _info[1].substr(4, 2),


        _info[2].substr(0, 1),

        _info[2].substr(1, 2),

        _info[2].substr(3, 1),

        _info[2].substr(4, 2),


        _info[3].substr(0, 1),

        _info[3].substr(1, 2),

        _info[3].substr(3, 1),

        _info[3].substr(4, 2),


        _info[4].substr(0, 1),

        _info[4].substr(1, 2),

        _info[4].substr(3, 1),

        _info[4].substr(4, 2),


        _info[5].substr(0, 1),

        _info[5].substr(1, 2),

        _info[5].substr(3, 1),

        _info[5].substr(4, 2)

    ]

    return parseInt(_calday[n - 1])

}


/**
 * 传入农历数字月份返回汉语通俗表示法
 * @param lunar month
 * @return Cn string
 * @eg:var cnMonth = calendar.toChinaMonth(12) ;//cnMonth='腊月'
 */

function toChinaMonth(m) { // 月 => \u6708

    if (m > 12 || m < 1) {
        return -1
    } // 若参数错误 返回-1

    var s = nStr3[m - 1]

    s += '\u6708' // 加上月字

    return s

}


/**
 * 传入农历日期数字返回汉字表示法
 * @param lunar day
 * @return Cn string
 * @eg:var cnDay = calendar.toChinaDay(21) ;//cnMonth='廿一'
 */

function toChinaDay(d) { // 日 => \u65e5

    var s

    switch (d) {
        case 10:

            s = '\u521d\u5341'

            break

        case 20:

            s = '\u4e8c\u5341'

            break

        case 30:

            s = '\u4e09\u5341'

            break

        default :

            s = nStr2[Math.floor(d / 10)]

            s += nStr1[d % 10]

    }

    return (s)

}


/**
 * 年份转生肖[!仅能大致转换] => 精确划分生肖分界线是“立春”
 * @param y year
 * @return Cn string
 * @eg:var animal = calendar.getAnimal(1987) ;//animal='兔'
 */

function getAnimal(y) {
    return Animals[(y - 4) % 12]

}


/**
 * 传入阳历年月日获得详细的公历、农历object信息 <=>JSON
 * @param y  solar year
 * @param m  solar month
 * @param d  solar day
 * @return JSON object
 * @eg:console.log(calendar.solar2lunar(1987,11,01));
 */

function solar2lunar(y, m, d) { // 参数区间1900.1.31~2100.12.31

    // 年份限定、上限

    if (y < 1900 || y > 2100) {
        return -1 // undefined转换为数字变为NaN

    }

    // 公历传参最下限

    if (y === 1900 && m === 1 && d < 31) {
        return -1

    }

    // 未传参  获得当天

    var objDate = null

    if (!y) {
        objDate = new Date()

    } else {
        objDate = new Date(y, parseInt(m) - 1, d)

    }

    var i

    var leap = 0

    var temp = 0

    // 修正ymd参数

    y = objDate.getFullYear()

    m = objDate.getMonth() + 1

    d = objDate.getDate()

    var offset = (Date.UTC(objDate.getFullYear(), objDate.getMonth(), objDate.getDate()) - Date.UTC(1900, 0, 31)) / 86400000

    for (i = 1900; i < 2101 && offset > 0; i++) {
        temp = lYearDays(i)

        offset -= temp

    }

    if (offset < 0) {
        offset += temp;
        i--

    }


    // 是否今天

    var isTodayObj = new Date()

    var isToday = false

    if (isTodayObj.getFullYear() === y && isTodayObj.getMonth() + 1 === m && isTodayObj.getDate() === d) {
        isToday = true

    }

    // 星期几

    var nWeek = objDate.getDay()

    var cWeek = nStr1[nWeek]

    // 数字表示周几顺应天朝周一开始的惯例

    if (nWeek === 0) {
        nWeek = 7

    }

    // 农历年

    var year = i

    leap = leapMonth(i) // 闰哪个月

    var isLeap = false


    // 效验闰月

    for (i = 1; i < 13 && offset > 0; i++) {
        // 闰月

        if (leap > 0 && i === (leap + 1) && isLeap === false) {
            --i

            isLeap = true;
            temp = leapDays(year) // 计算农历闰月天数

        } else {
            temp = monthDays(year, i)// 计算农历普通月天数

        }

        // 解除闰月

        if (isLeap === true && i === (leap + 1)) {
            isLeap = false
        }

        offset -= temp

    }

    // 闰月导致数组下标重叠取反

    if (offset === 0 && leap > 0 && i === leap + 1) {
        if (isLeap) {
            isLeap = false

        } else {
            isLeap = true;
            --i

        }

    }

    if (offset < 0) {
        offset += temp;
        --i

    }

    // 农历月

    var month = i

    // 农历日

    var day = offset + 1

    // 天干地支处理

    var sm = m - 1

    var gzY = toGanZhiYear(year)


    // 当月的两个节气

    // bugfix-2017-7-24 11:03:38 use lunar Year Param `y` Not `year`

    var firstNode = getTerm(y, (m * 2 - 1)) // 返回当月「节」为几日开始

    var secondNode = getTerm(y, (m * 2)) // 返回当月「节」为几日开始


    // 依据12节气修正干支月

    var gzM = toGanZhi((y - 1900) * 12 + m + 11)

    if (d >= firstNode) {
        gzM = toGanZhi((y - 1900) * 12 + m + 12)

    }

    // 传入的日期的节气与否

    var isTerm = false

    var Term = null

    if (firstNode === d) {
        isTerm = true

        Term = solarTerm[m * 2 - 2]

    }

    if (secondNode === d) {
        isTerm = true

        Term = solarTerm[m * 2 - 1]

    }

    // 日柱 当月一日与 1900/1/1 相差天数

    var dayCyclical = Date.UTC(y, sm, 1, 0, 0, 0, 0) / 86400000 + 25567 + 10

    var gzD = toGanZhi(dayCyclical + d - 1)

    // 该日期所属的星座

    var astro = toAstro(m, d)

    return {
        'lYear': year,
        'lMonth': month,
        'lDay': day,
        'Animal': getAnimal(year),
        'IMonthCn': (isLeap ? '\u95f0' : '') + toChinaMonth(month),
        'IDayCn': toChinaDay(day),
        'cYear': y,
        'cMonth': m,
        'cDay': d,
        'gzYear': gzY,
        'gzMonth': gzM,
        'gzDay': gzD,
        'isToday': isToday,
        'isLeap': isLeap,
        'nWeek': nWeek,
        'ncWeek': '\u661f\u671f' + cWeek,
        'isTerm': isTerm,
        'Term': Term,
        'astro': astro
    }

}


var calendarFormatter = {
    // 传入阳历年月日获得详细的公历、农历object信息 <=>JSON

    solar2lunar: function (y, m, d) { // 参数区间1900.1.31~2100.12.31

        return solar2lunar(y, m, d)

    },

    /**
     * 传入农历年月日以及传入的月份是否闰月获得详细的公历、农历object信息 <=>JSON
     * @param y  lunar year
     * @param m  lunar month
     * @param d  lunar day
     * @param isLeapMonth  lunar month is leap or not.[如果是农历闰月第四个参数赋值true即可]
     * @return JSON object
     * @eg:console.log(calendar.lunar2solar(1987,9,10));
     */

    lunar2solar: function (y, m, d, isLeapMonth) { // 参数区间1900.1.31~2100.12.1

        isLeapMonth = !!isLeapMonth

        if (isLeapMonth && (leapMonth !== m)) {
			console.log('1-1');
            return -1
        }// 传参要求计算该闰月公历 但该年得出的闰月与传参的月份并不同

        if (y === 2100 && m === 12 && d > 1 || y === 1900 && m === 1 && d < 31) {
			console.log('1-2');
            return -1
        } // 超出了最大极限值

        var day = monthDays(y, m)

        var _day = day

        // bugFix 2016-9-25

        // if month is leap, _day use leapDays method

        if (isLeapMonth) {
            _day = leapDays(y, m)

        }

        if (y < 1900 || y > 2100 || d > _day) {
			
			console.log('1-3',y,_day);
			console.log('1-3');
            return -1
        }// 参数合法性效验


        // 计算农历的时间差

        var offset = 0

        for (var i = 1900; i < y; i++) {
            offset += lYearDays(i)

        }

        var leap = 0

        var isAdd = false

        for (i = 1; i < m; i++) {
            leap = leapMonth(y)

            if (!isAdd) { // 处理闰月

                if (leap <= i && leap > 0) {
                    offset += leapDays(y);
                    isAdd = true

                }

            }

            offset += monthDays(y, i)

        }

        // 转换闰月农历 需补充该年闰月的前一个月的时差

        if (isLeapMonth) {
            offset += day
        }

        // 1900年农历正月一日的公历时间为1900年1月30日0时0分0秒(该时间也是本农历的最开始起始点)

        var stmap = Date.UTC(1900, 1, 30, 0, 0, 0)

        var calObj = new Date((offset + d - 31) * 86400000 + stmap)

        var cY = calObj.getUTCFullYear()

        var cM = calObj.getUTCMonth() + 1

        var cD = calObj.getUTCDate()

        return solar2lunar(cY, cM, cD)

    }

}

module.exports  = calendarFormatter
